Product Overview
The Bently Nevada 990-05-XX-01-00 168251-01 Vibration Transmitter is a two-wire, loop-powered vibration monitoring device that provides continuous protection for critical machinery. It integrates with a 3300 NSv proximity probe and extension cable to measure shaft vibration, converting the data into a 4–20 mA output signal compatible with standard control and monitoring systems.
Key Features
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2-wire, loop-powered transmitter design for easy integration
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Provides 4–20 mA output proportional to vibration amplitude
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Compatible with 3300 NSv proximity probes and extension cables
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Built-in PROX OUT for accessing vibration and gap signals
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Zero and span adjustment potentiometers for field calibration
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Fault detection with “Not OK” and signal defeat circuitry
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DIN rail and bulkhead mounting flexibility
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Rugged, sealed construction for harsh industrial environments
Technical Specifications
| Item | Specification |
|---|---|
| Hersteller | Bently Nevada |
| Artikelnummer | 990-05-XX-01-00 / 168251-01 |
| Product Type | Two-wire vibration transmitter |
| Dimensions | 100.1 x 73.9 x 53.3 mm |
| Gewicht | 0.43 kg |
| Power Supply | +12 to +35 V DC |
| Output | 4–20 mA proportional to vibration amplitude |
| Vibration Range | 0–5 mils peak-to-peak (~0–125 µm) |
| Frequency Response | 5 Hz to 6,000 Hz (-0, +3 dB) |
| Loop Accuracy | ±1.5% von full scale |
| Max Loop Resistance | 1,000 Ω (at 35 V DC) |
| Probe Gap | 0.5 to 1.75 mm recommended |
| Minimum Target Size | 9.5 mm (0.375 in) diameter |
| Operating Temperature – Transmitter | –35 °C to +85 °C |
| Operating Temperature – Probe | –52 °C to +177 °C |
| Relative Humidity | 0–100%, condensing |
| Mounting Options | 35 mm DIN rail or bulkhead screw mounting |
Industry Applications
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Pumps and compressors
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Electric motors and generators
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Fans and blowers
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OEM equipment protection systems
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Oil & gas and petrochemical plants
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Power generation facilities
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Process machinery vibration monitoring
Häufig gestellte Fragen (FAQ)
Q1: What does the “05” in the part number indicate?
It specifies that the transmitter measures vibration in the range von 0–5 mils peak-to-peak.
Q2: What is the function von the 168251-01 identifier?
It denotes a specific hardware revision or ordering option for the transmitter.
Q3: What type von probes are supported by this transmitter?
It is designed for use with 3300 NSv proximity probes and compatible extension cables.
Q4: Can it provide both vibration and gap signals?
Yes, through the PROX OUT diagnostic output.
Q5: How is the transmitter powered?
It is loop-powered using +12 to +35 V DC.
Q6: What happens if the probe connection fails?
The output will drop below 3.6 mA, indicating a “Not OK” condition.
Q7: Is calibration possible in the field?
Yes, with zero and span potentiometers for easy adjustment.
Q8: Can it be mounted on DIN rail?
Yes, it supports DIN rail and bulkhead mounting options.
Related Bently Nevada Modules
| Modell | Beschreibung |
|---|---|
| 990-08-XX-01-00 | Vibration transmitter with 0–8 mils range |
| 990-10-XX-01-00 | Vibration transmitter with 0–10 mils range |
| 990-20-XX-01-00 | Extended range vibration transmitter |
| 3300 NSv Probe | Compatible eddy-current proximity probe |
| 330930 Extension Cable | NSv extension cable for probe connection |
| 122115-01 | Test adapter for PROX OUT diagnostics |
Popular Bently Nevada Modules
| Modell | Beschreibung |
|---|---|
| 3500/42M | Vibration monitoring module |
| 3500/92 | Communication gateway module |
| 3500/91 | Communication interface module |
| 330104 XL Probe | 8 mm proximity probe |
| 330708 XL Probe | 11 mm proximity probe |
| 330130 Extension Cable | Standard extension cable |
Unternehmensinformationen
E-mail: [email protected]
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Add: Alishan Building, 2 Lvling Rd, Bezirk Siming, Xiamen, Fujian, China, 361006
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